1. Introduction
The first cases of infection with a new coronavirus variant, namely SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), were recorded in the city of Wuhan, China, in late 2019. In a short time, it covered the whole world and dramatically affected everyone’s life. Depending on the number of infections and the decisions made by national governments, the daily lives of citizens changed in different ways. To date, several publications have appeared dealing with the impact of the coronavirus pandemic on mental health [
1,
2,
3,
4], and the UN (United Nations) produced a special report on the subject [
5]. In the report, the organization emphasized the importance of mental health for the proper functioning of society, presented statistics on the impact of SARS-CoV-2 on the population, identified the social groups most at risk of pandemic-related mental disorders, and proposed appropriate measures to combat the phenomenon.
The occupational groups studied were particularly exposed to the new infectious disease. Even before 2019, both paramedics [
6,
7,
8,
9] and nurses [
10,
11,
12] were dealing with a variety of stressors in their professional lives. However, the outbreak of the SARS-CoV-2 pandemic may have further exacerbated mental health problems in these professions. This study focused specifically on people working in Lodz, Poland. According to the Polish EZOP I study [
13], the province of Lodz had the highest prevalence rate for mental disorders compared to other provinces.
To date, a large number of studies on this topic have been produced and published worldwide [
14,
15,
16,
17,
18]. A large proportion of these deal with health workers in Asia, particularly in China [
17,
18]. The authors of this study investigated stress responses and coping methods and analyzed the prevalence of worrisome psychosomatic symptoms related to stress exposure during the pandemic. In Poland, few papers have been published on this topic [
19], but there are many articles dealing with stress and occupational burnout in nurses and paramedics before the declaration of the epidemic state in Poland that can serve as a reference.
We assumed that in the research conducted on a selected population of respondents, the period of the pandemic had a negative impact on the mental condition of paramedics and nurses.
2. Materials and Methods
A group of 100 respondents (
Table 1) including 44 men and 56 women aged 21 to 67 years (M = 38.65, SD ± 12.57) participated in the study. A total of 48 respondents worked as nurses, 46 worked as paramedics, and 6 individuals practiced both professions. The mean number of years of work experience was 15.78 (SD ± 13.01). Respondents worked in hospitals (63 individuals), emergency medical services (29 individuals), or both (8 individuals).
The criterion for inclusion in the study group was to have worked as a paramedic or nurse in the Lodz region for at least 2 months during the epidemic state in Poland, i.e., between 20 March 2020, and 13 May 2022 (Regulation of the Minister of Health of 20 March 2020 on declaring a state of epidemic in the territory of the Republic of Poland). Such a period of time was sufficient to develop adverse symptoms, and it was necessary to exclude from the research group people who had just started working or who were only working in healthcare temporarily at the time.
A paper questionnaire prepared and developed by the authors of this article was used to conduct the study. The questionnaire was based on the Hamilton Anxiety Rating Scale (HAM-A) [
20] and the Link Burnout Questionnaire (LBQ) by Massimo Santinello published by the Laboratory of Psychological Tests of the Polish Psychological Association [
21].
The instrument consisted of four parts, each focusing on a different target. The first part, comprising 17 closed questions and 1 open question, examined the occurrence of selected stress-related phenomena at work. Respondents could rate the frequency of the listed sensations on a 5-point scale (never, rarely, sometimes, often, or always). The second part consisted of seven closed questions and examined the factors influencing the level of perceived stress on a 4-point scale (definitely not, rather not, rather yes, or definitely yes). The third part consisted of 11 closed and 1 open-ended question and examined the frequency of somatic and psychosomatic symptoms on a 5-point scale (never, rarely, sometimes, often, or always). The fourth part included 7 items and analyzed the intensity of negative stress-related phenomena on a 4-point scale (definitely not, rather no, rather yes, or definitely yes).
Questionnaires were completed on paper only in the presence of the authors who conducted the research or other selected individuals who assisted in data collection.
Participation in the study was voluntary, and all respondents were informed of the aims and purpose of the data collection and gave consent. In addition, it was possible to withdraw from the study at any time. The study did not require approval from the Bioethics Committee because it did not meet the definition of a medical experiment. This article was written as part of a master’s thesis.
Analysis was performed using PQStat software (version 1.6.8). The following data were used for the analysis:
Mann–Whitney U test to compare ordinal and quantitative variables (when the assumption of normal distribution was not met) between two groups;
Spearman’s rank correlation coefficient, determined whether two ordinal variables are correlated;
Friedman’s test for one-way analysis of variance with repeated measures by rank, which can be used to determine whether there are statistically significant differences between the ratings of each measure.
4. Discussion
The results of the survey show many problems associated with healthcare work, not only during the pandemic. In the first part of the survey, we can see that physical exhaustion, pressure, tension, and disappointment with work were present in almost all respondents but with varying frequency. However, it seems reassuring that the negative feelings are balanced by the occurrence of many positive feelings with relatively high frequency. Particularly noteworthy is the frequently mentioned confidence in one’s professional competence and ability to organize one’s job despite the difficult conditions associated with the pandemic, as well as the very rare thoughts of turning back the clock and changing jobs. Another balancing aspect of negative experiences is the repeatedly provided response regarding contact with colleagues; these relationships may have proven important in coping with the new, difficult situation.
The factors cited by survey participants as having the greatest impact on the level of perceived stress and dissatisfaction were the number of patients and the tasks. Based on the context of the study, although it was not stated whether there were more or fewer, it can be surmised that there were more than before the outbreak of the pandemic, which could only have had a negative impact on the mental health of medical staff. This could also indicate that the number of patients before the pandemic was also very high and was already affecting stress and dissatisfaction. It is also worth mentioning the next most common factor influencing stress and dissatisfaction, namely financial compensation. It should be noted that paramedics and nurses in Poland who came into contact with patients diagnosed or suspected of having coronavirus were entitled to salary supplements, which were usually 100% of their basic salary [
22]. However, the questionnaire does not provide us with an answer to the question of whether the lack of additional compensation received by some employees discouraged them from taking the risk of working near infected patients or whether the allowance compensated for the harsh experience of the pandemic. The same research issue was raised in a study by Charzyńska-Gaula et al. [
12], in which low salary was the factor most frequently cited by respondents as a cause of high levels of stress.
Somatic and psychosomatic symptoms discussed in this study include insomnia (such as difficulty falling asleep, irregular sleep, unsatisfactory sleep, fatigue upon waking, nightmares, or night terrors), tension (such as feelings of tension, fatigue, violent reactions, tendency to cry, body tremors, feelings of restlessness, and inability to rest/relax), and symptoms related to intellectual performance (difficulty concentrating and poor memory). Whereas the first two symptoms occur in medical personnel working under highly stressful conditions regardless of the ongoing pandemic, difficulty concentrating and poor memory seem to be of particular concern among paramedics and nurses, as such symptoms can lead to errors and adverse events, affecting patients’ lives and health.
The term ‘post-COVID brain fog’ has already been mentioned in the literature and can summarize such a clinical picture [
23,
24,
25]. In 2021, Hellmuth et al. [
24] described a study of two patients who had contracted the new coronavirus variant but were not hospitalized for it. Results of routine testing were not abnormal, but more detailed testing showed deficits in working memory and cognitive function. In addition, a cohort observational study of 100 subjects who were in recovery (COVID -19) identified 14 non-hospitalized subjects who had uninterrupted cognitive impairments that lasted at least 98 days. In addition, Theoharides et al. [
25] described cognitive dysfunction and fatigue in patients with long COVID. The authors compared the clinical picture and etiopathogenesis with patients who had received chemotherapy (’chemo-fog’) and with patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) or mast cell activation syndrome (MCAS). Cognitive functions are significantly related to the way reality is interpreted and, consequently, to the occurrence of emotional states and sustained mood.
In this section, the last follow-up question, which dealt with the prevalence of the listed symptoms before the introduction of the epidemic state in Poland, proved to be crucial. The results clearly show that most respondents felt that their symptoms had worsened during the pandemic (41%), but when asked in an open-ended question to name or select specific symptoms from those listed, 84% were unable to do so. There may be several reasons for this situation. The most probable is that the high stress level and constant readiness of the respondents did not allow for free reflection on their mental state and all related problems relative to the period before the introduction of the epidemic state in Poland. This resulted in difficulty in remembering the specific symptoms that had accompanied them before. Another likely explanation for these differences in responses is a misunderstanding or haste in completing the survey that was not communicated to the investigator, resulting in a failure to provide detailed responses. To determine the cause of this problem, the survey participants would need to be interviewed in depth. This could be a limitation of the present work.
The analysis of the last part of the questionnaire revealed that the epidemiological situation, as well as the negative situations, feelings, and symptoms that followed, had the greatest impact on interpersonal relationships and only secondarily on extra-occupational interests and hobbies. Such disintegration processes in interpersonal relationships could be due to the danger posed by the transmission of the coronavirus to close contacts, as well as to the frequent compliance with quarantine by personnel who were released from quarantine only after a certain period of the pandemic. Abandonment of hobbies and interests and deterioration of contact with family and friends could also be attributed to the high number of hours worked, especially among staff who had more than one job or who worked more hours in their only job than a full-time position warranted. Such excessive workload that increased the risk of burnout could have had similar effects even in the absence of a global pandemic, but this hypothesis requires detailed analysis and comparison with prepandemic statistics.
The literature on this topic is not extensive, and the conclusions drawn from the observations made are consistent with other studies on related topics and with information available in the literature.
Barszczak [
6] analyzed stress in the paramedic profession. The results show that paramedics consider themselves stress-resistant individuals who can handle difficult situations and emergencies. The biggest stressors for them are the high level of responsibility and time pressure. Nevertheless, the respondents indicated that they believe that they are able to deal with stress appropriately. The results suggest that stress negatively affects the respondents’ ability to concentrate and leads to fatigue and irritability, but they could not indicate how often they experience such stress. The most frequently chosen methods of coping with stress included hobbies and passions, as well as talking with close contacts.
In 2015, Nowicki et al. [
8] conducted a study on how paramedics cope with stress at work. A proportion of 92% of respondents admitted to experiencing stress related to their work. Respondents used two coping strategies to deal with stress, namely the active coping model, in which they take action to improve their situation, and the acceptance model, which involves accepting the current situation and learning to live with it. The author of the article also emphasized the major role that relationships with loved ones and family, and thus the ability to talk to others, play in the process of coping with stress.
In a 2015 study conducted by Rasmus et al. [
9] on the effects of experienced stress on risky behaviors in a group of emergency medical technicians (EMT), the results showed that 82.14% of the 140 county and provincial emergency department personnel surveyed experienced high levels of work-related stress. The most common risky behaviors were alcohol consumption (95%), dangerous traffic behaviors (55%), and smoking (45.5%). In addition, a relationship was found between the level of perceived stress and the occurrence of risky behaviors. The authors concluded that because of the high level of perceived stress, appropriate methods and techniques should be used to reduce the negative effects of experiencing traumatic events.
In 2015, Kędra and Nowocień [
11] investigated the relationship between stressors and burnout risk in nurses. During data collection, 200 individuals completed the survey. A total of 129 individuals chose the highest score when asked whether salaries are inadequate relative to the demands of the job, and 100 respondents gave the highest score for an unacceptable ratio of salaries to other occupations. In addition, it was concluded that an important factor that causes job dissatisfaction and increases the risk of burnout is being overloaded with job tasks. The most commonly cited stressors in nurses’ jobs are an excessive number of tasks, responsibility for another person’s health, and dissatisfaction and resentment from patients and their families.
In a paper published in 2016 by Charzyńska-Gaula et al. [
12], the authors analyzed the causes of occupational stress perceived by nurses. Most of the 278 nurses surveyed (85%) were satisfied with their work, but as many as 95% said that the nursing profession was stressful. A proportion of 56.1% of respondents indicated that they were exposed to occupational stress on a daily basis. The most frequently cited factors that caused significant levels of stress were low pay and sudden deterioration of patients’ condition and the need for resuscitation.
Antonijevic et al. [
15] conducted a study with 1678 participants to assess their stress levels by comparing medical staff working on the ‘frontline’ with those working on the ‘second line’ in health care during the COVID-19 pandemic in Serbia. The results of their study showed that frontline staff had twice the risk of developing severe anxiety-related symptoms. In addition, the study authors concluded that healthcare workers who work directly with patients had higher levels of stress, anxiety, and depressive symptoms. They also called for the implementation of appropriate psychological support and stress management interventions for these employees.
In 2020, Cai et al. [
17] investigated the effects of stress on healthcare workers in Hunan Province, China, as well as coping strategies among healthcare workers dealing with the new variant of coronavirus. A total of 534 workers completed the relevant questionnaires. Results indicated that they felt professionally and socially obligated to work longer hours and feared for their safety and the safety of their loved ones, and that emerging reports of COVID-19-related deaths had negative psychological effects. In addition, it was found that the availability of appropriate procedures in case of infection, specialized equipment, appreciation of the efforts by hospital management and the government, and a decrease in the number of coronavirus cases led to a noticeable improvement in psychological status. According to the authors, medical personnel in Hunan province experienced a significant increase in stress levels due to the SARS-CoV-2 outbreak in the neighboring province of Hubei. In addition, they pointed out that continued recognition of medical personnel by hospital management and the government, provision of appropriate infection guidelines, specialized equipment, and adequate facilities for COVID-19-infected patients would encourage medical personnel to make the effort to combat outbreaks in the future.